Valve means



VALVE MEANS Filed Nov. 1, 1946 KER PUSH

15 31 32 l4 29 INVENTOR. 17a 15a 19a W i geo 'gelzfinncb a? w M Patented Feb 1, 1949 Thieinvention fiela'tes tjo' vajiv-e mean spend more mmculafly we ise1e'e oir ya vememsattested font he handnng'or fuels-f6! intemei cembusn on engines. I f 7' .Oneobiecto'f the invfitinn is toiprovide anew and improved --va1ve'.mean's"oi th'e fselecton type.

Anothellobjeot 1's;t'o .piroVid the selector'typ'e being an vand reqliiring'in ovement 1n" woto ease from. dnels'leet'ed p s' onto another.

Alfurther db ject-is tiiipi'ovifi v I associatedwiiflfi the various positions of the'fvalve means. Y I f .7 i

'L'Othef objects 'aiid'ndi/jeinteges wilijbeeome tapparent from the ifolldwin'g flet'ailed deseribti'on e a valve" "means bf v'e its (l beration planes tm order taken "in ,.connection "with the "eec ejmperfiy n-g it is herein shown fend ilr rerei'ne fterj-t eescr'ihe'ci in a prefeired embodiment? "It is tiintended; however, ithatt e invention is-wbe limnea thereby to the Specific "construction flisci'os'ed.

.On the contrary, itis".intehdeiitoobver'jalhnfodi V piiilicetion -Nov ember 1, 1946,;seria1'No. 707-,131

1 aelenns: (019251 76) end. of the valve 'ele n'ent; and e; 'reduced'portion in recessed portions"'l"1a, I'Ba anelf r9 02 of theigaive element. V v V V Opening toione e'nd 'of the bore is wfirst'inlet '2'! having "an internally threaded portionfor the second in'1etf24jopensi'adiailly tOthefbOrihtermediate the 'ends' thereof "and is eonnected by casing and "'2. ifitting" 25a to. "a seeondeo'nduit26. A common outlet 21 'isprovided"intermediatethe below #the gauze screen 'elen'tent'fl 3-. An outlet "2 8' from the strainer; operisjto the 'streiner'al'bove Fig. 23s a, vertieel "setion'aiq g mes er the gauzescreeni-n g element sothet afl' fuel entering the, "strainerpasses through the gauze screen "prio'r to entering the "outlet 28.

h As isc'leer'froni'theforegoing:when-the vaiive is in'the'p ositi'omsh'own in Fig; 3 fiends l 1 and I B prevent communication between the inlet 'iifl "and the outlet 21, but permiteornrnunieationgb'etween I the inlet :24 *andthe *outletby means -of *the reduetedpbrtionffl/ v f with' thefvalve in' 't'he position s'h0wn arr-Fig. communication is permitted--between the inlet 21""an d 'thewutlet 2-l whee communication between the 3 inlet 24 and the *o'utiet is prevented. -In the pOsitionshowh in Fig. -2,' tinelends l T-and i8 prevent'commnnioation' to the outlet "from either-of theiriiets.

'Within'the bone is al valve ei emerit ll 61 bfuthefsp'ool typehaving ;a,.- land J 1;- adjeoentmthe- =-ift$hand iend. as'-.seenv:in4mg.- 2%, re; second-Janet speeed fromtheyfirst, a, third landxls at thetgpighthand *In' the 'particul'ai' embodiment shown, the two inlets'are assumed--- to "connect to two sources of feel; I namely kerosene and gaso'Iine.- It is common" in some internal 'eombust-ion'= engines such as those "for usein' tractors,'=toprovide a fuel such as gasoline for startingfi-theengine=and 'for' th'e wejrmingup period and to then'run the- -engine onthe cheaper fuel,- namely kerosene; after-the engine :is-"thoroughiy"warmed; It is one of the purposes 0f this invention to provide a, fvailve means for suoh' aninstaillatio n' to "ass-tire positive 'sel'eetionof the fies 'ed fuel!" 1 In =order to "insure that the va-lve is-irnenipuleted o'its' eorrectm0si- -tion, "and to guard against "-f'mentai 'iapse's" 'on then'art er the-operator; means are--proi ided-requiring the operator notonlyto-pushor pull the 'Vaive' to the position establishing*communiation "with the proper inlet, but alsetocomperthef operatorto rotate the valve before thedesired posi- .tion (33.11.1196 attain d: 'Tothisen'd, the device is .so fairaingediha't. the pointer.12'9v associated (with the indic atingfpanel 30 ca nn0t lbe-rotafied tol indieateone orihelotheif 0i theuf ue ls 1 without first 3 bringing the valve to a neutral or off position, and then rotating the valve clockwise or counterclockwise before shifting the valve to the desired position.

To accomplish this end, the end of the bore is opposite the inlet 2| closed by a closure 3| having an opening 32 therein of a certain particular shape. In the embodiment shown, the particular shape is that of a D and is formed by a D washer 33, although it will be clear that other shapes, such as a square or an ofi-center circle, may be used. The valve means is manually actuable by means of the valve stem 34 which is divided into three sections, a first section 35 having the same cross'sectional shape as the'opening 32, a central section 36 which is rotatable withinthe open- 7 to the right to the position shown in Fig. 2,

will cause the valve means to slide to theright within the bore until the beginning of the first 'section.35 strikes the sides of the opening haltingfurther progress. At that time, the valve means will bein the ofi position, and the central section 36 is positioned within the opening. In order to move the valve to the position shown in Fig. 4, the valve stem must be rotated until the first section is registerable with the opening whereupon the valve means may be withdrawn further to the right until the position shown in Fig. 4 is-attained. It can thus be seen that the valve cannot be' moved from the gasoline position to the kerosene position, or vice versa, without first rotating the valve while in the off position.

I claim as my invention:

1. Valve means comprising: a casing having a bore formed therein, a plurality of inlets opening to said bore and an outlet leading irom said-bore, a spool valve element slidably, and rotatably mounted within said bore having a first position permitting communication between one of 'said inlets and said outlet, a second position preventing communication between said inlets, and said outlet and a third position permitting communication between another of said inlets and said outlet, a closurefor one end of said here, a manually actuable valve stem connected to said spool valve element and extending through an open ing in said closure, said valve stem having a first section having the same cross sectional shape as said opening and slidable therethrough in one angular position. and having a central section slidable through said opening in all angular positions and having a third section having the same cross sectional shape as said opening and slidable therethrough in another angular position, whereby said valve stem may be manually moved from the said second position wherein said central section is positioned in said opening to said first or to said third position -by manually rotating the valve stem to cause one or the other of said first or third sections of said valve stem to register with said opening.

2. Valve means comprising: a casing having a bore formed therein, a pair of inlets opening to said bore and an outlet leading from said bore, a

ed Within said bore having a first position permitting communication between one of said inlets and said outlet, a second position preventing communication between said inlets and said outlet and a third position permitting communication between the other of said inlets and said outlet, a closure for one end or said bore, a manually actuable'valve stem connected to said spool valve element and. extending through anopening in said closure, said valve stem having a first section having the same cross sectional shape as said opening and slidable therethrough in one angular position and having a central section slidable throughsaid opening in all angular positions and having a thirdsection angularly displaced from said'first section-and having the same cross sectional shape as said opening and being slidable therethrough in another angular position, whereby said valve stem may be manually moved from the said second position wherein said central section is positioned in said opening to said first or to said third position by manually rotating the valve stem clockwise or counterclockwise to cause one or the other of said firstor third sections of said valve stem .to register with the opening.

3. Valve means comprising: a casing having a bore formed therein, a .pluralityof inlets opening to said bore, an outlet leading from said bore, a spool valve element slidably and rotatably mounted within said bore having 'a first position permitting communication between one of said inlets and said outlet, a second position preventing communication between said inlets and said outlet and a third position permitting communication between another of said inlets and said outlet, a closure for one end of said bore, a inanually actuable valve stem connected to said spool valve element and extending through an opening in said closure,.said valve stem having a first section having the same cross sectional shape as said opening and slidable therethrough in one angular position, and having a central section slidable through said opening in all angular positions and having a third section angularly dis,- placed from said firstsection and having the same cross sectional shape as said opening and being slidable therethrough in another angular position,

whereby said 'valvestem may be manually rotated clockwise or counterclockwise while in said second position wherein said"c entral section is positioned in said opening so as to cause the first orthird section of said valve stem to register with the opening thereby permitting said valve to be manually moved inwardly or outwardly to said first or to said third position.

4. Valve means comprising: a casing having a bore formed therein, a pair of inletsopening to said bore, an outlet leading from said bore, a spool valve element. slidably and rotatably mounted within said bore having a plurality of lands formed thereingsaid lands comprising O'-rings, and said valve having a first position permitting communication between one. of said inlets and said outlet, 'a. second position preventing communication between said inlets and said outlet and a third position permitting communication between another. or said inlets'and said outlet, a closure for one end or said bore, a manually actuable valve stem' connected to said spool valve element and extending through an opening in said closure, said valve stem having a first section hav:

said opening in all angular positions and having a third section angularly displaced from said first register with said opening thereby permitting said valve to be manually moved inwardly or out-. wardly to said'first or third position, and indicating means associated with said valve stem to 5 visually indicate the position of said valve.

GEORGE E. FRANCK.

No references cited. 

